Cisco Catalyst 4500 Series Administration Guide

41-7
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL_28731-01
Chapter 41 Configuring VRF-lite
Configuring VRF-lite for IPv4
The following example lists all the steps to configure per-VRF TACACS+:
Switch> enable
Switch# configure terminal
Switch (config)# ip vrf cisco
Switch (config-vrf)# rd 100:1
Switch (config-vrf)# exit
Switch (config)# interface Loopback0
Switch (config-if)# ip vrf forwarding cisco
Switch (config-if)# ip address 10.0.0.2 255.0.0.0
Switch (config-if)# exit
Switch (config-sg-tacacs+)# ip vrf forwarding cisco
Switch (config-sg-tacacs+)# ip tacacs source-interface Loopback0
Switch (config-sg-tacacs)# exit
For more information about configuring per-VRF for TACACS+ server,
http://www.cisco.com/en/US/docs/ios/sec_user_services/configuration/guide/sec_vrf_tacas_svrs.pdf
Configuring Multicast VRFs
To configure multicast within a VRF table, perform this task:
Step 10
aaa group server tacacs+ group-name
Example:
Switch (config)# aaa group server tacacs+
tacacs1
Groups different TACACS+ server hosts into distinct lists
and distinct methods and enters server-group configuration
mode.
Step 11
server-private {ip-address | name} [nat]
[single-connection] [port port-number]
[timeout seconds] [key [0 | 7] string]
Example:
Switch (config-sg-tacacs+)# server-private
10.1.1.1 port 19 key cisco
Configures the IP address of the private TACACS+ server
for the group server.
Step 12
Switch (config-sg-tacacs+)# ip vrf forwarding
vrf-name
Configures the VRF reference of a AAA TACACS+ server
group.
Step 13
Switch (config-sg-tacacs+)# ip tacacs
source-interface subinterface-name
Uses the IP address of a specified interface for all outgoing
TACACS+ packets.
Step 14
Switch (config-sg-tacacs)# exit
Exits server-group configuration mode.
Command or Action Purpose
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# ip routing
Enables IP routing.
Step 3
Switch(config)# ip vrf vrf-name
Names the VRF and enters VRF configuration mode.
Step 4
Switch(config-vrf)# ip
multicast-routing vrf vrf-name
(Optional) Enables global multicast routing for VRF table.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E